| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.hdfs.server.namenode; |
| |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.Collection; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.HdfsConfiguration; |
| import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.NamenodeRole; |
| import org.junit.Test; |
| |
| public class TestFSNamesystem { |
| |
| /** |
| * Tests that the namenode edits dirs are gotten with duplicates removed |
| */ |
| @Test |
| public void testUniqueEditDirs() throws IOException { |
| Configuration config = new Configuration(); |
| |
| config.set(DFS_NAMENODE_EDITS_DIR_KEY, "file://edits/dir, " |
| + "file://edits/dir1,file://edits/dir1"); // overlapping internally |
| |
| // getNamespaceEditsDirs removes duplicates |
| Collection<URI> editsDirs = FSNamesystem.getNamespaceEditsDirs(config); |
| assertEquals(2, editsDirs.size()); |
| } |
| |
| /** |
| * Test that FSNamesystem#clear clears all leases. |
| */ |
| @Test |
| public void testFSNamespaceClearLeases() throws Exception { |
| Configuration conf = new HdfsConfiguration(); |
| NameNode.initMetrics(conf, NamenodeRole.NAMENODE); |
| DFSTestUtil.formatNameNode(conf); |
| FSNamesystem fsn = FSNamesystem.loadFromDisk(conf); |
| LeaseManager leaseMan = fsn.getLeaseManager(); |
| leaseMan.addLease("client1", "importantFile"); |
| assertEquals(1, leaseMan.countLease()); |
| fsn.clear(); |
| leaseMan = fsn.getLeaseManager(); |
| assertEquals(0, leaseMan.countLease()); |
| } |
| } |